What does "sagan" mean?
A unit of measurement equal to at least four billion.
Sagan
/ˈseɪɡən/ name, noun, slang
name, noun, slang ·Moderate ·College level
Meaning at a glance
- Primary sense: A unit of measurement equal to at least four billion.
- Grammar: sagan is listed as name, noun, slang.
- Nearest alternatives: family name, last name, surname.
- Useful contrasts: first name, given name.
- Usage evidence: Carl Sagan gathered information about our planet onto a disk and sent it into space, so that other intelligent beings would find it.
How to use "sagan"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "sagan" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "sagan" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "sagan" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "sagan" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "sagan" is acting as name, noun, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "family name" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "sagan", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 A unit of measurement equal to at least four billion. humorous, slang
"Today, there is a well-known joke unit of measurement called a Sagan. a Sagan is four billion—the smallest number that could fit the description "billions and billions.""
- 2 Alternative letter-case form of Sagan. alt-of
"Part of it was that I just couldn't deal with a piece of primal matter floating around for sagans of years, eroding away until it became a nice, shiny, sharp-as-William-F.-Buckley's-tongue sword, with the old familiar "S" symbol coincidentally engraved on its hilt."
Proper Noun
- 1 A surname.
- 2 A village in Sardasht Rural District, in the Central District of Bashagard County, Hormozgan Province, Iran.
- 3 Alternative form of Sakan (village in West Azerbaijan, Iran). alt-of, alternative
- 4 A river in southern Ethiopia.
"I had resolved to pass along the eastern shore of Lake Ganjule, in order to solve the problem of the sources of the river Sagan, the largest affluent of Lake Stefanie, which was supposed to flow out of Lake Ganjule. This I found to be not the case. The sources of the Sagan lie east of the south end of Lake Abaya. But there is a broad channel connecting Lake Ganjule with the Sagan."
- 5 A town in southern Ethiopia, named for the river.
Synonyms
All synonymsAntonyms
first namegiven name
Example
"Carl Sagan gathered information about our planet onto a disk and sent it into space, so that other intelligent beings would find it."
Common questions
What is a synonym for "sagan"?
Common synonyms include: family name, last name, surname.
How do you use "sagan" in a sentence?
Carl Sagan gathered information about our planet onto a disk and sent it into space, so that other intelligent beings would find it.
How do you pronounce "sagan"?
Pronounced /ˈseɪɡən/.
Etymology
The unit is derived from the phrase "billions and billions (of stars)", erroneously attributed to the American astronomer Carl Sagan. The lower bound of such a number must be two billion plus two billion, or four billion. Johnny Carson popularized the phrase through his occasional impersonation of Sagan throughout his career.